144 ORGANIC REMAINS. 



Millepora straminea ... ... PI. IX. fig. 1. Scarborough (very rare in 



this stratum.) 



Cidaris vagans ... ... PI. VII. fig. 1. Scarborough, and in other 



strata. 



Clypeus. 1. clunicularis Llwyd ... fig. 2. Ditto. 



2. orbicularis ... fig. 3. Scarborough. 



Galerites depressus ... fig. 4. Ditto, and in other strata. 



Pentacrinus caput medusae (Miller's Crinoi'dea) Ditto. 



MOLI.USCA. 



Mya literata (Min. Conch.) >. PI- VII. fig. 5. Scarborough, and in other 



strata. ,/ t 



Sanguinolaria vindulata (Min. Conch.) PL V. fig. 1. Ditto. 



Pholadomya. 1. Murchisoni (Min. Conch.) PI. VII. fig. 9- Scarbro', and in Sutherland. 

 2. oyalis (Min. Conch, tab. ccxxvi.) Ditto. 



Amphidesma. 1. decurtatum ... PL VII. fig. 11. Scarborough, Gristhorpe, 



and Wiltshire. 

 2. securiforme ..* fig. 10. Scarborough and Wiltshire. 



Unio peregrinus (Pullastra Murchison) fig. 12. Ditto. 



Isocardia minima (Min. Conch, tab. ccxcv.) fig. 6. Ditto. 



Cardium citrino'ideum ... fig. 7- Ditto. 



Trigonia clavellata (Min. Conch, tab. Ixxxvii.) Ditto, Gristhorpe, and in 



other strata. 



Modiola cuneata (Min. Conch, tab. ccxi.) PL V. fig. 28. Scarborough, Lincolnshire, 

 (a large variety) Wiltshire, &c. 



Pinna cuneata (Bean, MS.) ... PL IX. fig. I'J. Scarborough, and in the 



middle oolite. 



Plagiostoma. 1. rigidulum k.. PL VII. fig. 13. Scarborough. It seems to be 



distinct from P. rigidum, 

 and is invariably smaller. 



2. interstinctum. (It has 

 fewer ribs than pla- 

 giostoma duplicatum 



fig. 14. 



Scarborough. This is the 

 usual size of the species 

 in cornbrash. 



(Min. Conch.) 

 Pecten. 1. fibrosus (Min Conch.) PL VI. fig. 3. Scarborough, Wilts. 



2. demissus ... PL VI. fig. 5. Scarborough, Gristhorpe, and 



hi other rocks* 



3. a species like viminalis* but with ) 



., Scarborough, 



more numerous ribs ... J 



